Snakes & Ladders 1-25 Large Half Solid
https://www.thermoplastic-markings.co.uk/shop/tmg003-25lh-snakes-ladders-1-25-large-half-solid-1998
https://www.thermoplastic-markings.co.uk/web/image/product.template/1998/image_1920?unique=4c0f250
Internal Reference:
TMG003-25LH